Patent US3296471A successfully refreshed from Google Patents.
US3296471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine
Assignee: Individual
•
Filing: 1963-12-11
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Granted: 1967-01-03
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Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 Cochardt Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:29
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
DYNAMOELECTRIC MACHINE COMPRISING A STATOR MEMBER AND A ROTOR MEMBER CONCENTRICALLY ARRANGED WITHIN THE STATOR MEMBER SO AS TO DEFINE A MAGNETIC GAP BETWEEN SAID STATOR AND ROTOR MEMBERS, SAID STATOR MEMBER INCLUDING A MAGNETICALLY CONDUCTING STATOR FRAME AND A PLURALITY OF PLATE-LIKE PERMANENT MAGNETS HAVING A PAIR OF OPPOSITE MAJOR SURFACES THAT ARE PLANES AND REPRESENT THE POLE FACES, SAID PERMANENT MAGNETS BEING DISPOSED WITHIN SAID STATOR FRAME HAVING THEIR ONE PLANE POLE FACES IN DIRECT CONTACT WITH SAID STATOR FRAME AND HAVING THEIR OTHER PLANE POLE FACES IN DIRECT CONTACT WITH AT LEAST ONE MAGNETICALLY CONDUCTING POLE SHOE BORDERING SAID MAGNETIC GAP, AT LEAST TWO ADJACENT ONES OF SAID PERMANENT MAGNETS BEING IN DIRECT CONTACT WITH A SINGLE COMMON POLE SHOE WHEREBY THE MAGNETIC FLUXES OF THE SAID AT LEAST TWO ADJACENT PERMANENT MAGNETS ARE COMBINED IN SAID COMMON POLE SHOE AND THE COMBINED FLUX IS CAUSED TO PASS FROM SAID COMMON POLE SHOE THROUGH SAID MAGNETIC GAP INTO SAID ROTOR, THE ARRANGEMENT BEING SUCH THAT THE INTERFACES BETWEEN SAID COMMON POLE SHOE AND THE PERMANENT MAGNETS IN DIRECT CONTACT THEREWITH DEFINE ANGLES LESS THAN 180*.
Claim 2
Dependent Claim
188 words
DYNAMOELECTRIC MACHINE COMPRISING A STATOR MEMBER AND A ROTOR MEMBER CONCENTRICALLY ARRANGED WITHIN THE STATOR MEMBER SO AS TO DEFINE A MAGNETIC GAP BETWEEN SAID STATOR AND ROTOR MEMBERS, SAID STATOR MEMBER INCLUDING A MAGNETICALLY CONDUCTING STATOR FRAME AND A PLURALITY OF PLATE-LIKE PERMANENT MAGNETS HAVING A PAIR OF OPPOSITE MAJOR SURFACES THAT ARE PLANES AND REPRESENT THE POLE FACES, SAID PERMANENT MAGNETS BEING DISPOSED WITHIN SAID STATOR FRAME HAVING THEIR ONE PLANE POLE FACES IN DIRECT CONTACT WITH SAID STATOR FRAME AND HAVING THEIR OTHER PLANE POLE FACES IN DIRECT CONTACT WITH AT LEAST ONE MAGNETICALLY CONDUCTING POLE SHOE BORDERING SAID MAGNETIC GAP, AT LEAST TWO ADJACENT ONES OF SAID PERMANENT MAGNETS BEING IN DIRECT CONTACT WITH A SINGLE COMMON POLE SHOE WHEREBY THE MAGNETIC FLUXES OF THE SAID AT LEAST TWO ADJACENT PERMANENT MAGNETS ARE COMBINED IN SAID COMMON POLE SHOE AND THE COMBINED FLUX IS CAUSED TO PASS FROM SAID COMMON POLE SHOE THROUGH SAID MAGNETIC GAP INTO SAID ROTOR, THE ARRANGEMENT BEING SUCH THAT THE INTERFACES BETWEEN SAID COMMON POLE SHOE AND THE PERMANENT MAGNETS IN DIRECT CONTACT THEREWITH DEFINE ANGLES LESS THAN 180*.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |